Bellows clamp



c. E1s-LER BELLows CLAMP Filed Feb. 24, 1945 /NVENTUR C24/.4445@ .LC/zeg Aug. 24, 1948.

Patented Aug. 24, 1948 STATES PATENT oErlcE BELLOWS CLAMP Charles Eisler, South Orange, N. J.

Original application March 30, 1944, Serial No. 528,813. Divided and this application February 24, 1945, Serial No. 579,675

1 Claim. l

This application is filed as a divisional application in compliance with the requirement for division in my copending application, Serial No. 528,813, filed March 30, 1944, now abandoned. The benefit of the filing date of the last mentioned application is claimed for this application.

The object of the invention described and claimed in the present application is to clamp bellows for the purpose of, for example, enabling them to be filled in a sequence of operations, and to be sealed for use in thermostatic control devices and similar installations. The filling and sealing means may be such as are described in my said copending application, Serial No. 528,813, or may be any other means with which the clamp herein described may be conveniently used or is adapted for use. The clamp may be used to secure bellows or other objects in a machine or system for any other purpose, within the scope of the present application. The term bellows as used in this application, shall be deemed to mean an expansible object adapted to be filled with a gas, or any other object adapted to be filled with a gas, vapor or solid.

These and other advantageous objects, which will later appear, are accomplished by the simple and practical construction and combination of parts hereinafter described and more particularly shown in the drawings, illustrating an embodiment of my invention, and in which:

Fig. 1 is a partly sectional top plan view of a device embodying my invention, taken on line 1--1 of Fig. 2, in the direction of the arrows,

Fig. 2 is an elevational, partly sectional view thereof, and

Fig. 3 is a vertical elevational View of the device with a bellows shown positioned therein.

The device forming the subject matter of this application is adapted to be used in connection with bellows and similar devices, as for example, exemplified in the bellows 61 shown in Fig. 3, said bellows having an exhaust tube 68 inserted in a clamp, which is embodied in the nipple 69 slidable in the cup 'lll of the holder head 'l I. The nipple rests on the disc l2, preferably of resilient material such as rubber, provided with a central hole 13, by which the tube 68 is firmly gripped when the disc is compressed by the nut member l 2 Manifolds 'lli are secured by bolts 18 to the flange of the holder sleeve 19- which has integral with it the spaced plates 8i] and 8| and bracket plate 82 which is secured to spider 2l of a machine or other member to which the device of my invention is secured by bolts 83.

Into the holder head duct lla is screwed the tube Bil, the lower end of which is inserted into the thick-walled tube 35, preferably of rubber or similar material, which, through sleeves 8b and elbow 3l, communicates with duct 53' of the valve mechanism for filling the bellows, such as shown in my said copending application, Serial No. 528,813. When, necessary because of leakage or for any other reason, the operator may immediately close the connection between the bellows and the valve or other member with which the bellows is connected by the duct t3, by turning the lever 89, pivoted on bolt 9d, which forces the transverse bar 9|, movable between plates 8@ and 8|, against the tube 8&5, which, is thereby constricted between the bar and the Wall 92 of the spaced plates 8i] and 8|.

It will thus be seen that I have provided a bellows clamp having a tube 85, the ends of which are fitted with connecting sleeves til and 8G for respective connection with the bellows-holding head ll and the duct 63 of the valve mechanism such as shown in Figs. 4 and 4b of my said copending application, Serial No. 513,813. The medial section of the tube intermediate the ends of the sleeves 84 and 86 therein, is compressible, as by the lever BQ above described, whereby the axial internal aperture of the tube 85 may be closed at the will of the operator to break the connection between the bellows and valve mechanism. The bellows clamp of the instant invention, as above described, is used to clamp bellows for the purpose of enabling them to be filled in the sequence of sealing operations for use in thermostatic control devices and similar installations. In the filling of such bellows, they are subjected to flushing and exhausting operations which are preferably carried out while the bellows are heated. The heated bellows are cooled by water circulating through the cooling manifold 16, having the interior channels l'l through which water is circulated in any suitable or desired manner.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

In a bellows clamp for holding a bellows during the operation of exhausting and filling 3 the same, wherein said bellows may be subjected REFERENCES CITED to a heating operation to facilitate exhausting The following references are of record in the and filling the same, a holder head having an open top cup formed on its upper end and being me of uns patent externally threaded, a, resilient disc seated in 5 UNITED STATES PATENTS said cup, a, bellows exhaust tube receiving nipple Number Name Date having a flanged lower end seated on said disc 502,003 Jeffery July 25, 1393 within theltop oflthefcup; an internally threaded- 33237321#k 051, 23I 1906 cap seeuredon the threaded upper'endv ofK the" 1,657,653'- Deveyeux Jn; 31, 1928 holder head, the top of the ca-p being formed with l0` 1,735,637 Cohen Nov, 12I 1929 a. Central opening through which Said nipple @XW 2,146,917 Rosenberger Feb. 14, 1939 tends, a bea-ring interposed between thelftopwof 21675952- Jordan Aug 1I 1939 the cap and the upper face of the flange on saidy 2,226,826 Miller Deo. 31, 1940i nipple, and a, manifold to Which saidhol'drl'head 21387;'660 Hall Oct. 23, 1945` 1s secured, said manifold havinganinteriorrchan u15- FOREIGN PATENTS nel for cooling purposes. i L

`Nmnl1e1=- Country Date CHARLES EISLER. l 25,014 Great Britain 1893 

